Browsing by Author "Hsu, GM"

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Reduced temperature-quenching of photoluminescence from indium nitride nanotips grown by metalorganic chemical vapor deposition
(2005-11-14)
Shi, SC
;
Chen, CF
;
Hsu, GM
;
Hwang, JS
;
Chattopadhyay, S
We report metalorganic chemical vapor deposition of indium nitride (InN) nanotips with apex angles of 10 degrees and length and base diameter of around 1 mu m and 200 nm, respectively. The structure of the hexagonal InN nanotips growing along [002] was studied by electron microscopy and x-ray diffraction, and the optical properties were studied using temperature-dependent photoluminescence (PL) measurements. A narrow emission peak with a 18 meV full width at half maximum positioned at 0.77 eV was obtained with no visible emission. A PL quenching of only 14% was observed with a temperature scan of 15-320 K. (C) 2005 American Institute of Physics.